/Engine/Source/Developer/DerivedDataCache/Public/DerivedDataCacheInterface.h
Retrieves the results from an async lookup / build. MUST only be called after the results are known to be ready by one of the aforementioned calls.
true if the data was retrieved from the cache or the deriver built the data successfully. false can only occur if the plugin returns false.
bool GetAsynchronousResults ( uint32 Handle, [TArray](API\Runtime\Core\Containers\TArray)< uint8 > & OutData, bool * bDataWasBuilt )